imagecompression is an intensively studied subject in computer vision. The deep generativemodel, especially generative adversarial networks (GANs), is a popular new direction for this subject. In this study, the aut...
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imagecompression is an intensively studied subject in computer vision. The deep generativemodel, especially generative adversarial networks (GANs), is a popular new direction for this subject. In this study, the authors propose a new compressionmethodbased on a generativemodel and focus on its application by GANs. The decoder in the proposed method is modified from the GAN generator model, which can produce visually real-like synthetic images. It is one of the two models in GANs, which is trained through a two-players' contest game. The encoder is an optimisation algorithm called backpropagation-to-the-input, which derives from an image inpainting algorithm based on generativemodels. In the proposed method, the authors turn the encoding process into an optimisation task to search for optimal encoded representations. Compared with traditional methods, the proposed method can compress images from certain domains into extremely small and shape-fixed encoded space but still retain better visual representations. It is easy and convenient to apply without any retraining or additional modification to the generativemodels.
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